Coil-winding machine



Dec. 26, 1922.

S. R. WRIGHT.

COIL WINDING MACHINE.

5 SHEETSSHEET I.

FILED AUG. 22.192].

Dec. 26, 1922.

s. R. WRIGHT.

COIL WINDING MACHINE.

5 SHEETS SHEET 2.

v FILED AUG-22, I921.

i I Q mfi IMZ a 7% Dec. 26, 1922.

s. R. WRIGHT.

con wmnme meme.

5 SHEETS-SHEET 3.

FILED AUG. 22.192].

II'III III IIIIII Dec. 26, 1922. 1,440,044. S. R. WRIGHT.

COIL wmnma MACHINE.

* FILED AUG.22. 192i. 5 SHEETSSHEET 4.

Dec. 26, 1922. 1,440,044. S. R. W R l G H T.

COIL WINDING MACHINE.

FILED AUG.22. I92I- 5 SHEETS-SHEET 5.

Patented Dec. Zfi, i922.

than

s'ran'nny nonnn'r WRIGHT, ornnwnon, nnnn Lnnns, nnenann, assrenon norename nnncrnro COMPANY, LIMITED, or Lennon, ENGLAND, a oonronar' TlIONOF GREAT BRITAIN.

COIL-WINDING iaaoninn.

Application filed. August 22,1921. Serial 1 1'o.' 494,412.

German UI 'IDER THE raovrsions or THE Aer or nancnaisai, n" star. It,1313.)

To all whom it may concern:

Be it known that I, STANL Y ltonnn'r l/VnIGrrr, a subyect of the King ofGreat Britain, and resident of Rawdon, near' Leeds, Yorkshire, England,have invented certain new and useful lmprovementsin and ually varyingthe'inclin'ation of a normally angular guide by means of a cam pathwhich engages a rollercarried by onearin'oi a bell crank lever, theother arm operatively engaging the cotton guide. y

The object of the'present invention' is to provide improved means of theabove char acter which iscapable of ready application to a standardplain coil winding machine to enable such machines to be used for thewinding of conical coilsand wherein therariation in theltraverse of thecotton guide is effected directly by the movement of the wire guide. a yi The means according to this invention for progressively shortening andthen progressively lengthening'the traverse, of the cotton guidecomprises abell crank lever the extremity of one arm of whichisoperatively connected to the cotton guidewhilst the extremity of theother arm slides within a slot ted link which is pivoted and soconnected tothe wire guide as tobe turned about its pivot consequentupon the traversing movement of said wire guide so as to cause saidslotted link to graduallytilt to an angular position and as graduallyturn again to a horizontal position.

In order that the invention may be clearly understood, the same will nowbe described by aid of the accompanying drawlngs in which i i Fig. 1 isa frontelevation of theessential built up by a machine according tothisinvention.

Fig; 6 illustrates one form of coil wound upon a standard coil windingmachine fitted with the attachmentaccording to this invention.

Figs. 7 8, 9 and 10 illustrate four stages in the laying on of thecotton during the return traverse of the wire guide and representingfull, three quarter, half and fully "l'oreshortened traversesrespectively.- j

According to the practical embodiment of the invention shown in thedrawing, the wire traverse guidel is reciprocated so that the first pairof layers 8 of wire is laid the full lengthot the coil, the second pairof I layers 9 at, say, two-thirds the length of th'e coil, the thirdpair of layers 10 at, say, one third the. length of the coil, and thefourth pair oflayers 11 again at perhaps two-thirds the length of thecoil; This completes one cycle,' i. e. one revolution of the cam. Thewinding of a coil. consists of, completingi'a series of such cyclesuntil the correct number of turns is obtained. The net result of onecycle of the cam thus Two full length layers. p

Four two-thirds length layers.

.Two one-third length layers. Consequently at the apeX of the coil Ihave two layers, but at the base I have eight layers, and thisproportion is. maintained throughout the windingoi the 0011, see Fig. 5.

To attain the desired irregularity of movement of the cotton traverse,the guides 12 dling the topof the traverse member so that each iscapableof movement relative to the other. The connecting medium between thecotton guide 12 and the cotton traversemember 16 comprises a bell cranklever 17 which is pivoted at 18 to the extension 19 ofthe.

vided with a roller or slide 24 with which it engages a slotted link 25.This link is rigidly mounted upon one end of a transverse pivot pin 26indicated in perspective in Fig. 4 which is supported in bearingsforming part of a bracket 26 which in turn is clamped to a fixed part ofthe mechanism suchas the stay rods 26. The slot 25 in the link 25 is ofsuch a length as to coincide with or exceed the full traverse of the cotton traverse lever.

Rigidly mounted upon the pivot pin 26 at the end opposite to that of theslotted link 25 so as'to move angular-1y therewith is an arm 27 theextremity of which is engaged in a slot 28 in a bracket 29 attached tothe wire traverse. I

From the above, it will be obvious that the angular position of theslotted link25 is determined by the horizontal position of the wiretraverse. The proportioning of the parts is such that when the wiretraverse has completed a maximum forward stroke the said slotted link 25is horizontal as shown in Fig. 1, and that when said wire traverse hascompleted a backward stroke said slotted link is angularly inclined asshown in Fig. i.

It will be further understood that the movement of theapex 20 of thebell crank lever 17 and therefore of the cotton guide 12 depends, in thefirst place, upon the movement of the cotton traverse member 16 and inthe second place uponthe angular disposition of the slotted link Thussuppose for the moment, that the slotted link is stationary in theposition illustrated in Fig. 1, and that the cotton traverse member isreciprocating, it is plain that the slot 25 being parallel to thedirection of movement of said cotton traverse member, the said bellcrank lever 17 will follow the movement of said cotton traverse memberwithout changing its angular disposition and therefore the apex 20thereof and the cotton guide 12 will re ciprocate with precisely thesame amplitude of stroke as the cotton traverse member 16. If, however,the slotted link 25 be supposed stationary in theposition illustrated inFig. 4: while the cotton traverse member. 16 is reciprocating, themovement of the apex '20 of the bell crank lever 16, and therefore ofthe cotton guide 12 may be considered as made up of'two components,viz., a horizontal movement equal to the bodily displaceany interval oftime the total horizontal component of the movement'of said apex 20 andthe guide 12 is less than the horizontal movement of the cotton traversemember 16 and therefore the an'iplitude of reciprocation ofthe cottonguide 12 will be less than that of the'cotton traverse member 16. It isof course quite obvious that for positions intermediate those shown inFigs. 1 and 4 the amplitude of reciprocation of the cotton guide is lessthan for the position of Fig. 1 and greater than for the position ofFigi.

In accordance with well known practice the cotton guide is reciprocatedat a much higher speed than the wire guide (in the ratio of about twohundred reciprocations to one) and as heretofore stated the cottontraverse member 16 is reciprocated at a uniform amplitude equal to themaximum length of the coil. It therefore follows that during any onewhole reciprocation of the, wire guide, say a maximum reciprocation fromthe position of Fig. 4 to that of Fig. 1 and back again, the cottonguide will make about two hundred reciprocations-one hundred increasingin amplitude from a minimum in which the thread is very muchforeshortened or built up on the cheek of the (3011 at the wound overthe whole length of the coil, and another hundred correspondinglydecreasing in amplitude to said minimum. During reciprocations of thewire traverse member and guide of less than the maxibase end to amaximum in which it is being mum, the slotted link 25 will be turnedfrom.

cotton guide are always suflicient to include i in their range theportion of wire being'momentarily wound on the coil, and therefore eachlayer of wire is effectively bound and covered with cotton before thewire guide commences its return stroke. By building up, as abovedescribed, the cotton on the cheek of the coil at the large end, eachlayer of wire is effectively prevented from slipping off the coil atsaid large end.

Fig. 9 illustrates the interweaving of the cotton and wire as effectedon a standard coil winding machine fittedwith the attachment accordingto this invention in which y represents the cotton or yarn and w thewire. As will be seen the cotton is built up at the large end of thecoil as indicated at a? so as to prevent the wire from slipping off suchend.

Figs, 7, 8 9 and 10 illustrate tour stages in the laying on oi thecotton commencing from a full traverse as shown in Fl 7 and terminatingwith the foreshorteued traverse shown in Fig. 10. The cam employed intraversing the cotton guide is of usual. form as fitted on standard coilwinding machines and as a consequence the particular conformation of thecotton winding shown is also of usual form and will therefore not bedescribed in detail here inasmuch as the present invention consistssolely in the means employed for effecting the foreshortening of thecotton traverse.

What I claim and desire to secure by Letters-Patent is v 1. In a coilWinding machine having independently operated wire and cotton traversemeans for progressively shortening and then guide. I

2. In a coil winding machine having indee pendently operated wire andcotton traverses means for progressively shortening and thenprogressively lengthening the traverses of the cotton guide according toclaim 1 comprising a bell crank lever the extremity of one arm of whichis operatively connected to the cotton guide whilst the extremity of theother arm slides within a slotted link which is pivoted and so connectedto the wire guide as to be turned about its pivot consequent upon thetraversing movement of said wire guide so as to cause said slotted linkto gradually tilt to an angular position and as gradually turn again toa horizontal position.

3. A coil winding machine according to claim 1 in which means areprovided for varying the extent of the full or normal traverse of thecotton guide.

In witness whereof I afl ix my signature.

STANLEY ROBERT WRIGHT.

